In response to concerns about nutritional contents of fast foods, McDonald's has announced that it will use a new cooking oil for its french fries that will decrease substantially trans fatty acid levels and increase the amount of more beneficial polyunsaturated fat. The company claims that 97 out of 100 people cannot detect a difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion), what is the approximate probability that in a random sample of 1000 individuals who have purchased fries at McDonald's, n USE SALT (a) At least 31 can taste the difference between the two oils? (Round your answer to four decimal places.) (b) At most 5% can taste the difference between the two oils? (Round your answer to four decimal places.)
In response to concerns about nutritional contents of fast foods, McDonald's has announced that it will use a new cooking oil for its french fries that will decrease substantially trans fatty acid levels and increase the amount of more beneficial polyunsaturated fat. The company claims that 97 out of 100 people cannot detect a difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion), what is the approximate probability that in a random sample of 1000 individuals who have purchased fries at McDonald's, n USE SALT (a) At least 31 can taste the difference between the two oils? (Round your answer to four decimal places.) (b) At most 5% can taste the difference between the two oils? (Round your answer to four decimal places.)
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:In response to concerns about nutritional contents of fast foods, McDonald's has announced that it will use a new cooking oil for its french fries that will decrease
substantially trans fatty acid levels and increase the amount of more beneficial polyunsaturated fat. The company claims that 97 out of 100 people cannot detect a
difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion), what is the approximate probability that in a random
sample of 1000 individuals who have purchased fries at McDonald's,
In USE SALT
(a) At least 31 can taste the difference between the two oils? (Round your answer to four decimal places.)
(b) At most 5% can taste the difference between the two oils? (Round your answer to four decimal places.)
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